function fakeAsync(){
  let delay = Math.random()*1000;

  return new Promise((resolve,reject)=>{
    setTimeout(()=>{
      console.log(`Task use ${delay}ms `);
      resolve(delay);
    },delay);
    
  });
}
/*
console.log('start...');
(async ()=>{
  await fakeAsync();
})();

*/
module.exports = fakeAsync;
